之前的项目中有遇到上传Excel文件的需求，简单说就是解析一个固定格式的Excel表格，然后存到数据库对应的表中，表格如下：
项目采用SSM架构，mvc模式，显而易见，这个Excel表需要拆成两个表，分别存入数据库中，这种表会解析，那其他的应该就难不倒我们了。我自己写的java后台的相关解析代码如下。
注意Excel文件中每个单元格的格式要准确，否则可能解析错误，如果有更加简洁的方案，欢迎大家在留言评论区，相互学习，共同进步！
依赖文件主要是ExcelUtil，其他的直接用maven导入就好，ExcelUtil的路径:https://i.cnblogs.com/Files.aspx
package com.yuandi.car.platform.controller;
import java.io.ByteArrayInputStream;
import java.math.BigDecimal;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.text.SimpleDateFormat;
import org.apache.commons.lang.time.DateUtils;
import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import com.yuandi.car.common.bean.RestDataResult;
import com.yuandi.car.common.enums.ResponseEnum;
import com.yuandi.car.common.exception.ServiceException;
import com.yuandi.car.common.util.ExcelUtils;
import com.yuandi.car.common.util.UUIDutil;
import com.yuandi.car.platform.service.IManufactService;
import io.swagger.annotations.Api;
import java.util.UUID;
import com.yuandi.car.platform.dao.model.T301_merchant;
import com.yuandi.car.platform.dao.model.T701_car_order;
import com.yuandi.car.platform.dao.model.T701_car_order_ext;
@Controller
@RequestMapping("/order")
@Api(value = "order接口")
public class OrderController extends BaseController {
private static Logger logger = LoggerFactory.getLogger(OrderController.class);
@Autowired
private IManufactService manufactService;
@RequestMapping(value = "/uploadDeal", method = RequestMethod.POST)
@ResponseBody
public RestDataResult uploadDeal(@RequestParam("file") MultipartFile file) {
RestDataResult result = new RestDataResult();
try {
if (validToken()) {
String contentType = file.getContentType();
String fileName = file.getOriginalFilename();
Workbook wb = WorkbookFactory.create(new ByteArrayInputStream(file.getBytes()));
Sheet sheet = wb.getSheetAt(0);
Row row = null;
FormulaEvaluator formulaEvaluator = null;
if (fileName.endsWith("xlsx")) {
formulaEvaluator = new XSSFFormulaEvaluator((XSSFWorkbook) wb);
} else {
formulaEvaluator = new HSSFFormulaEvaluator((HSSFWorkbook) wb);
}
T701_car_order order = new T701_car_order();
String orderid = UUIDutil.getUUID();
order.setOrderid(orderid);
//manufactService.addcarOrder(order);
String ownerEntity = null;
String mertPhone = null;
boolean flag = false;
for (int i = 1; i < 6; i++) { //i < sheet.getLastRowNum() - 0 + 1;
row = sheet.getRow(i);
if (null == row) {
continue;
}
switch (i) {
case 1:
for (Cell c : row) {//循环单行的每一个空格
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
order.setOwnerentity(value);
ownerEntity = value;
System.out.println("经销商法人姓名:" + value);
} else if (c.getColumnIndex() == 5) {
order.setMerchantphone(value);
mertPhone = value;
System.out.println("联系电话:" + value);
}
}
break;
case 2:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
order.setManagername(value);
System.out.println("公司分管经理:" + value);
} else if (c.getColumnIndex() == 5) {
order.setManagerphone(value);
System.out.println("联系电话:" + value);
}
}
break;
case 3:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
order.setMerchantname(value);
System.out.println("经销商全称:" + value);
} else if (c.getColumnIndex() == 5) {
order.setAddress(value);
System.out.println("收货地址:" + value);
}
}
break;
case 4:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
Double f = Double.valueOf(value);
Integer intvalue = (int)Math.ceil(f);
order.setCapacity(intvalue);
System.out.println("经销商库容:" + intvalue);
} else if (c.getColumnIndex() == 5) {
Date expDate = ExcelUtils.stringToNormalDate(value);
order.setExptime(expDate);
System.out.println("期望发货时间:" + expDate);
}
}
break;
case 5:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
order.setMonopolize(value);
System.out.println("经销商品牌经营:" + value);
}
else if (c.getColumnIndex() == 5) {
order.setBrandnumber(value);
System.out.println("品牌经营数量:" + value);
}
}
break;
}
}
for (int i = sheet.getLastRowNum() - 3 + 1; i < sheet.getLastRowNum() - 0 + 1; i++) { //i < sheet.getLastRowNum() - 0 + 1;
row = sheet.getRow(i);
if (null == row) {
continue;
}
switch (i - sheet.getLastRowNum()-1) {
case -3:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
// TODO
//Integer intvalue = Integer.parseInt(value);
Double f = Double.valueOf(value);
Integer intvalue = (int)Math.ceil(f);
order.setTotal(intvalue);
System.out.println("合计:" + value + " 辆");
} else if (c.getColumnIndex() == 5) {
//Long f = Long.valueOf(value);Long f = Long.parseLong(value);
BigDecimal bd=new BigDecimal(value);
order.setTotalprice(bd);
System.out.println("总价:" + value + " 元");
}
}
break;
case -2:
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
// TODO
order.setOrganizername(value);
System.out.println("编制人姓名:" + value);
} else if (c.getColumnIndex() == 4) {
order.setOrganizerphone(value);
System.out.println("编制人电话:" + value);
} else if (c.getColumnIndex() == 6) {
Date subTime = ExcelUtils.stringToNormalDate(value);
order.setSubmittime(subTime);
System.out.println("订单提报时间:" + subTime);
}
}
break;
case -1:
for (Cell c : row) {//循环单行的每一个空格
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
order.setRegulatorname(value);
System.out.println("接收人姓名:" + value);
} else if (c.getColumnIndex() == 4) {
order.setRegulatorphone(value);
System.out.println("接收人电话:" + value);
} else if (c.getColumnIndex() == 6) {
Date receiveTime = ExcelUtils.stringToNormalDate(value);
order.setReceivetime(receiveTime);
System.out.println("订单接收确认时间:" + receiveTime);
}
}
break;
}
}
if(ownerEntity.isEmpty()||mertPhone.isEmpty()){
result.setRespcode(ResponseEnum.PARAM_NULL.getCode());
result.setMessage(ResponseEnum.PARAM_NULL.getMessage());
}else{
T301_merchant merchant = manufactService.qryMerchantByOwnerPhone(ownerEntity, mertPhone);
Date now = new Date();
order.setManufactid(merchant.getEntityid());
order.setName(merchant.getEntityname());
order.setMerchantid(merchant.getMerchantid());
order.setCreatetime(now);
manufactService.addcarOrder(order);
flag = true;
}
//以下内容添加到扩展表
for (int i = 7; i < sheet.getLastRowNum() - 3 + 1; i++) {
row = sheet.getRow(i);
if (null == row) {
continue;
}
T701_car_order_ext orext = new T701_car_order_ext();
orext.setOrderid(orderid);
for (Cell c : row) {
String value = null;
boolean isMerge = ExcelUtils.isMergedRegion(sheet, i, c.getColumnIndex());
// 判断是否具有合并单元格
if (isMerge) {
value = ExcelUtils.getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
} else {
value = ExcelUtils.getCellValueFormula(c, formulaEvaluator);
}
if (c.getColumnIndex() == 2) {
orext.setModel(value);
} else if (c.getColumnIndex() == 3) {
orext.setVersion(value);
} else if (c.getColumnIndex() == 4) {
Double f = Double.valueOf(value);
Integer intvalue = (int)Math.ceil(f);
orext.setTotal(intvalue);
System.out.println("数量:" + value + " 辆");
} else if (c.getColumnIndex() == 5) {
BigDecimal bd=new BigDecimal(value);
orext.setUnitprice(bd);
System.out.println("单价:" + bd + " 元");
} else if (c.getColumnIndex() == 6) {
//Long f = Long.valueOf(value);Long f = Long.parseLong(value);
BigDecimal bd=new BigDecimal(value);
orext.setTotalprice(bd);
System.out.println("金额:" + value + " 元");
} else if (c.getColumnIndex() == 7) {
orext.setProperty(value);
System.out.println("属性:" + value);
}
}
if(flag){
manufactService.addcarOrderExt(orext);
}else{
result.setRespcode(ResponseEnum.PARAM_NULL.getCode());
result.setMessage(ResponseEnum.PARAM_NULL.getMessage());
}
}
setSucc(result);
} else {
setInvalidToken(result);
}
} catch (ServiceException e) {
result.setCodeMessage(e.getErrorCode(), e.getMessage());
} catch (Exception e) {
logger.error("", e);
result.setRespcode(ResponseEnum.SYS_ERROR.getCode());
result.setMessage(ResponseEnum.SYS_ERROR.getMessage());
}
return result;
}
} 来源：oschina
链接：https://my.oschina.net/u/4359133/blog/3507170